Tag: Neonatology

This comprehensive comparison illustrates the fundamental differences between the anatomy of a healthy human heart and one affected by Dextro-Transposition of the Great Arteries (d-TGA), a critical congenital defect. By distinguishing between the standard "series" circulation, where blood flows in a figure-eight pattern, and the pathological "parallel" circulation of d-TGA, we can better understand the severe physiological implications of this condition. The diagram highlights how the reversal of the great vessels prevents oxygenated blood from reaching the systemic body tissues, creating a medical emergency in newborns.

Explore the crucial differences in oxygen-hemoglobin dissociation curves between fetal and adult hemoglobin, highlighting the remarkable adaptation that ensures efficient oxygen transfer to the developing fetus. This article delves into how fetal hemoglobin's higher oxygen affinity is essential for intrauterine survival.